Question

The resultant of two vectors of magnitude 2 and 3 unit is 1. the angle between them is
a)180
b)90
c)60
d)45

Answer 1

HEY MATE...

QUESTION-----
The resultant of two vectors of magnitude 2 and 3 unit is 1. the angle between them is

a)180
b)90
c)60
d)45

ANSWER------
(a)✴️ 180
$\huge\bf\red{Explanation!!!!}$
From parellelogram law of vectors magnitude of resultant vector (R) is given by the fromula..

$\huge\bf\red{[Attachment!!]}$

If 3 N is acted along +ve x-axis and 2 N along -ve x-axis then resultant force is 1 N along +ve x-axis.

Answer 2

hey mate

here is your answer

1²=2²+3²+2*2*3 Cos #

1=4+9+12 Cos #

-12=12 Cos #

Cos #=-1

Cos #=Cos 180°

#=180° (answer)

hence

1)- is correct option